{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T11:09:57Z","timestamp":1780398597888,"version":"3.54.1"},"reference-count":26,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2022,1,26]],"date-time":"2022-01-26T00:00:00Z","timestamp":1643155200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Anat Histol Embryol"],"published-print":{"date-parts":[[2022,3]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Argentine black and white tegus (<jats:italic>Salvator merianae<\/jats:italic>) are omnivorous lizards native to southeastern Brazil, Uruguay, eastern Paraguay and northern Argentina, and are invasive species in Florida and Georgia, USA. They are opportunistic feeders, which is what allow them to have such a diverse variety of foods. Tegus raised a particular concern due to their adaptive capability to different environments. Our goal was to provide a micromorphology baseline of oesophagus and stomach and correlate findings with their dietary and invasive capabilities. Four Argentine black and white tegus were used for this study. We collected and processed specimens from oesophagus and stomach using standard histological techniques and stained tissue sections using Haematoxylin and Eosin (H&amp;E), Periodic Acid Schiff (PAS), Alcian Blue (AB) and Verhoef's elastic stains. The oesophagus was lined with ciliated pseudostratified columnar epithelium (PSCE) with goblet cells. Gut\u2010associated lymphoid tissues (GALT) were present occasionally in the oesophagus and more frequently in the stomach. Tunica muscularis (Tm) of the oesophageal\u2010gastric junction had distinct smooth muscle which could function as a sphincter. The mucosa of the stomach was lined with simple columnar epithelium (SC). The glands had neck and dark oxyntico\u2010peptic cells. The pyloric sphincter had more GALT and mucus cells than other regions. The Tm outer layer is thinner than the inner. Presence of large number of goblet cells would support faster transit of the bolus. The short digestive tract and the histological features observed are consistent with the ability of tegus consumption of large amount of food.<\/jats:p>","DOI":"10.1111\/ahe.12786","type":"journal-article","created":{"date-parts":[[2022,1,27]],"date-time":"2022-01-27T07:39:25Z","timestamp":1643269165000},"page":"259-268","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Micromorphological study of the upper digestive tract of the Argentine tegu (<i>Salvator merianae<\/i>)"],"prefix":"10.1111","volume":"51","author":[{"given":"SebastianVasquez","family":"Betancourt","sequence":"first","affiliation":[{"name":"College of Veterinary Medicine Western University of Health Sciences  Pomona California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristopher J.L.","family":"Irizarry","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine Western University of Health Sciences  Pomona California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bryan Glenn","family":"Falk","sequence":"additional","affiliation":[{"name":"South Florida Natural Resources Center Everglades National Park  Homestead Florida USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Josep","family":"Rutllant","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine Western University of Health Sciences  Pomona California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8971-0142","authenticated-orcid":false,"given":"Wael","family":"Khamas","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine Western University of Health Sciences  Pomona California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,1,26]]},"reference":[{"key":"e_1_2_6_2_1","first-page":"18","volume-title":"Risk Assessment of the Nonnative Argentine Black and White Tegu, Salvator merianae, in South Florida (Master\u2019s thesis)","author":"Barraco L. A.","year":"2015"},{"issue":"1","key":"e_1_2_6_3_1","first-page":"9","article-title":"Density of the Tegu Lizard (Tupinambis\n                  merianae) and its Role as Nest Predator at Anchieta Island","volume":"3","author":"Bovendorp R. S.","year":"2008","journal-title":"Neotropical Biology and Conservation"},{"key":"e_1_2_6_4_1","volume-title":"Reptile Medicine and Surgery","author":"S. Divers","year":"2006"},{"key":"e_1_2_6_5_1","first-page":"27","volume-title":"Florida Fish and Wildlife Conservation Commission report","author":"Enge K. M.","year":"2007"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.2307\/1564908"},{"key":"e_1_2_6_7_1","unstructured":"Gans C. (Editor). (1977). Biology of the Reptilia Morphology E. Co\u2010Editor T. S. Parsons Academic press England New York USA A subsidiary of Harcourt Brace pp.161\u2010166."},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0245877"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1656\/058.019.0404"},{"key":"e_1_2_6_10_1","volume-title":"The Argentine Black and White Tegu in South Florida: Population Growth, Spread, and Containment. Institute of Food and Agricultural Sciences","author":"Harvey R. G.","year":"2015"},{"key":"e_1_2_6_11_1","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1201\/9781420004038","volume-title":"Infectious diseases and pathology of reptiles, color atlas and text","author":"Jacobson E. R.","year":"2007"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-018-28468-w"},{"issue":"1","key":"e_1_2_6_13_1","first-page":"105","article-title":"Diet of juvenile tegu lizard Tupinambis\n                  merianae (Teiidae) in southeastern Brazil","volume":"23","author":"Kiefer M. C.","year":"2002","journal-title":"Amphibia\u2010Reptilia"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10530-014-0834-7"},{"key":"e_1_2_6_15_1","first-page":"225","volume-title":"Biology of the Reptilia","author":"Luppa H.","year":"1977"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10530-014-0730-1"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00360-003-0393-1"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1656\/058.014.0207"},{"issue":"1","key":"e_1_2_6_19_1","first-page":"15","article-title":"The diet of adult Tupinambis\u2010teguixin (sauria, teiidae) in the eastern Chaco of Argentina","volume":"4","author":"Mercolli C.","year":"1994","journal-title":"The Herpetological Journal"},{"key":"e_1_2_6_20_1","unstructured":"Nomina Histologica Veterinaria. (2017). International Committee on Veterinary Histological Nomenclature (ICVHN). Published on the website of the World Association of Veterinary Anatomists. .http:\/\/www.wava\u2010amav.org\/downloads\/NHV_2017.pdfwww.wava.amav.org"},{"key":"e_1_2_6_21_1","first-page":"274","volume-title":"Dukes\u2019 Physiology of Domestic Animals","author":"W. O. Reece","year":"2015"},{"key":"e_1_2_6_22_1","doi-asserted-by":"publisher","DOI":"10.1155\/1997\/642360"},{"key":"e_1_2_6_23_1","first-page":"427","article-title":"Range of animal food types recorded for the tegu lizard (Salvator\n                  merianae) at an urban park in South\u2010eastern Brazil","volume":"6","author":"Sazima I.","year":"2013","journal-title":"Herpetology Notes"},{"key":"e_1_2_6_24_1","first-page":"399","article-title":"Tupinambis\n                  merianae (tegu) Diet","volume":"35","author":"Silva J. S. B.","year":"2004","journal-title":"Herpetological Review"},{"key":"e_1_2_6_25_1","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.1500951"},{"key":"e_1_2_6_26_1","unstructured":"United States Geological Survey. Evaluation of Tegu Movements and Habitat Use in Relation to Location and Habitat(n.d.).https:\/\/www.usgs.gov\/centers\/wetland\u2010and\u2010aquatic\u2010research\u2010center\u2010warc\/science\/evaluation\u2010tegu\u2010movements\u2010and\u2010habitat\u2010use\u20100?qt\u2010science_center_objects=0#qt\u2010science_center_objects."},{"key":"e_1_2_6_27_1","first-page":"27","article-title":"Preliminary observations on the reproductive cycle of female Tegu lizards (Tupinambis\n                  teguixin)","volume":"6","author":"Yanosky A.","year":"1991","journal-title":"Cuadernos De Herpetologia"}],"container-title":["Anatomia, Histologia, Embryologia"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ahe.12786","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/ahe.12786","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ahe.12786","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,27]],"date-time":"2023-08-27T02:28:17Z","timestamp":1693103297000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/ahe.12786"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,1,26]]},"references-count":26,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2022,3]]}},"alternative-id":["10.1111\/ahe.12786"],"URL":"https:\/\/doi.org\/10.1111\/ahe.12786","archive":["Portico"],"relation":{},"ISSN":["0340-2096","1439-0264"],"issn-type":[{"value":"0340-2096","type":"print"},{"value":"1439-0264","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,1,26]]},"assertion":[{"value":"2021-09-13","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-01-12","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-01-26","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}